20018122783 has 2 divisors, whose sum is σ = 20018122784. Its totient is φ = 20018122782.

The previous prime is 20018122781. The next prime is 20018122867. The reversal of 20018122783 is 38722181002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20018122783 - 2¹ = 20018122781 is a prime.

Together with 20018122781, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20018122781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10009061391 + 10009061392.

It is an arithmetic number, because the mean of its divisors is an integer number (10009061392).

Almost surely, 2^20018122783 is an apocalyptic number.

20018122783 is a deficient number, since it is larger than the sum of its proper divisors (1).

20018122783 is an equidigital number, since it uses as much as digits as its factorization.

20018122783 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10752, while the sum is 34.

The spelling of 20018122783 in words is "twenty billion, eighteen million, one hundred twenty-two thousand, seven hundred eighty-three".